Connecting Interfacial Mechanical Adhesion, Efficiency, and Operational Stability in High Performance Inverted Perovskite Solar Cells

Dai, Zhenghong; You, Shuai; Chakraborty, Dwaipayan; Li, Shunran; Zhang, Yadong; Ranka, Anush; Barlow, Stephen; Berry, Joseph J.; Marder, Seth R.; Guo, Peijun; Qi, Yue; Zhu, Kai; Padture, Nitin P.

doi:10.1021/acsenergylett.4c00510

Connecting Interfacial Mechanical Adhesion, Efficiency, and Operational Stability in High Performance Inverted Perovskite Solar Cells

Journal Article · Tue Apr 02 00:00:00 EDT 2024 · ACS Energy Letters

DOI:https://doi.org/10.1021/acsenergylett.4c00510· OSTI ID:2341264

Dai, Zhenghong ^[1]; You, Shuai ^[2]; Chakraborty, Dwaipayan ^[1]; ^[3]; Zhang, Yadong ^[4]; Ranka, Anush ^[1]; ^[4]; ^[5]; Marder, Seth R. ^[5]; ^[3]; ^[1]; ^[2]; ^[1]

Brown University, Providence, RI (United States)
National Renewable Energy Laboratory (NREL), Golden, CO (United States). Chemistry and Nanoscience Center
Yale University, New Haven, CT (United States)
University of Colorado, Boulder, CO (United States)
University of Colorado, Boulder, CO (United States); National Renewable Energy Laboratory (NREL), Golden, CO (United States). Materials Science Center

Carbazole-based self-assembled monolayers (SAMs) at the interface between the metal-halide perovskite (MHP) and the transparent conducting oxide (TCO) serve the function of hole-transport layers in p-i-n "inverted" perovskite solar cells (PSCs). In this report we show that the use of an iodine-terminated carbazole-based SAM increases the interfacial mechanical adhesion dramatically (2.6-fold) and that this is responsible for substantial improvements in the interfacial morphology, photocarrier transport, and operational stability. While the improved morphology and optoelectronic properties impart high efficiency (up to 25.39%) to the PSCs, the enhanced adhesion suppresses nucleation and propagation of pores/cracks during PSC operation, resulting in the retention of 96% of the initial efficiency after 1000 h of continuous-illumination testing at the maximum power-point. This demonstrates the strong connection between judicious interfacial adhesion toughening and simultaneous enhancement in the efficiency and operational stability of p-i-n PSCs, with broader implications for the reliability and durability of perovskite photovoltaics before they can be commercialized.

View Accepted Manuscript (DOE)

Research Organization:: National Renewable Energy Laboratory (NREL), Golden, CO (United States)

Sponsoring Organization:: National Science Foundation (NSF); Office of Naval Research (ONR); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office

Grant/Contract Number:: AC36-08GO28308; EE0009511; EE0010502

OSTI ID:: 2341264

Report Number(s):: NREL/JA--5900-89155; MainId:89934; UUID:f5296609-c71f-4c02-bca6-dfc6093a5265; MainAdminId:72337

Journal Information:: ACS Energy Letters, Journal Name: ACS Energy Letters Journal Issue: 4 Vol. 9; ISSN 2380-8195

Publisher:: American Chemical Society (ACS)Copyright Statement

Country of Publication:: United States

Language:: English

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